Hydrocarbon-burner.



UNITED STATES Patented December 15, 1903,

PATENT OFFICE.

WILFRED B. SMITH, OF CEDAR RAPIDS, IOWA, ASSIGNOR TO DOROTHY MAY SMITH, OF CEDAR RAPIDS, IOWA.

HYD-R'OCAARBON-VBURNER.

SPEGIFIGATION forming part of Letters Patent 1N0. 746,890, dated December 5, 03-

Application filed December 24;, 1902. Serial No. 136,477. (No model.)

To all whom it may concern.-

Be it known that I, WILFBED R. SMITH, a citizen of the United States, residing at Cedar Rapids, in the county of Linn and State of Iowa, have invented a new and useful Hydrocarbon-Burner, of which the following is a specification.

This invention relates to burners for the consumption of gasolene and other light hydrocarbons in heating and cooking stoves and for analogous purposes, the object being to provide a burner which shall be simple in construction, inexpensive, and generally eificient and by the use of which the liquid fuel may be converted into gaseous vapor, which with a liberal admixture of atmospheric air shall be consumed in such a manner as to produce the greatest possible amount of heat.

A further object of my invention is to so construct the burner as to adapt it specially to be used in connection with a superimposed layer of broken fire-brick or other suitable refractory material which when heated to incandescence by the flames of the burner shall assist in retaining and radiating the heat, as well as in supplying the necessary heat for converting the liquid fuel into a vapor, and for highly heating the same, as well as the air mingled therewith, so as to produce economically the best possible results.

With these and other objects in view my invention consists in the improved construction, arrangement, and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a side view showing my improved burner applied to thefire-pot of an ordinary heatingstove, parts having been broken away for the purpose of showing the construction more clearly. Fig. 2 is a top plan view of a burner detached from the fire-pot. Fig. 3 is a vertical sectional view taken on the line 3 3 in Fig. 1. Fig. iis adetail plan view illustratinga modification in the form of the burner.

Corresponding parts in the several figures are designated by similar characters of reference.

The body of my improved burner is composed of a chamber 1, having radial distributing-pipes 2,1)f which four are preferably used, said pipes being extended from the central chamber at right angles to each other. It will be understood, however, that a greater or lesser number may be used whenever desired. These distributing-pipes are provided with laterally-extending burner-pipes 3,which cooperate therewith to form a grate structure,

as will be readily understoodby reference to Figs. 2 and 4 in the drawings, the former of which illustrates a structure adapted to fit in the circular fire-pot of an ordinary heatingstove, while the modified form illustrated in Fig. 4 shows an elongated grate structure adapted more particularly to fit in the firebox of an ordinary range or cook-stove. In any case the burner-pipes are preferably disposed parallel to the'distributing-pipes adj acent to those from which they extend, and my improved device may take the place of the grate ordinarily employed, although it may, if deemed preferable or more convenient, be supported upon the ordinary grate of the stove in connection withwhich the invention is used.

The central chamber 1 of the device has connected to its under side a mixing-tube 4., which in the accompanying drawings has been shown as being of the ordinary L shape and provided with a bell-shaped mouth or air-intake to admit air freely. A burner-tube 5, also suitably connected with the chamber 1, is provided with a horizontal branch 6, hav ing apertures 7, suitably disposed to deflect flame upon the generator-tubes, as will he understood.

The supply-pipe 8 leads from a tank 9, which, as shown in the drawings, may be placed at an elevation, so as to supply by gravity the necessary pressure, which is preferred as being more even and regular than an artificially-created pneumatic pressure, which may, however, be used when desired. The supply-pipe 8 is provided with a chamber 10, containing suitable packing, as indicated at 11, for the purpose of retarding the flow of liquid into the generator-tubes, which are connected with the discharge end of the said packing-chamber. The generator-tubes are composed of the branches or arms of a U-shaped pipe 12, said arms being connected by a web 13, which supports a downwardlyextending stem lei, upon which the generatorcup 15 is mounted, a valve 16 being provided for the purpose of supplying liquid fuel to the said generator-cup and also for the purpose of supplying a small flame, whereby the generator tubes may be kept constantly heated when desired. An extension 17, rising from the discharge end of the U-shaped generator-pipe, terminates in a vapor-discharge orifice arranged to discharge vapor into the lower open end of the mixing-chamher, a needle-valve 18 being arranged to control the discharge of vapor through such orifice.

19 designates the fire-pot, in the lower end of which the burner-body is disposed, so as to practically constitute the grate. A quantity of broken-up fire-brick or other suitable refractory material (designated 20) is placed in the fire-pot, Where being exposed to the direct heat of the flames from the burner when the latter is in operation the said refractory material will be quickly heated to incandescence, when it will greatly contribute to the efficiency of the device.

The operation of my invention will be readily understood from the foregoing description, taken in connection with the drawings hereto annexed. In order to start the burner, the valve 16 is opened to permit a quantity of the liquid hydrocarbon to escape into the generator-cup 15, where, after closing the valve 16, it is ignited, thus heating the arms or branches of the generator-pipe, below which the said cup is supported. When the generator-pipe has become sufficiently heated, the valve controlling the passage of the liquid-fuel therethrough is opened, and the liquid on entering the said pipe becomes converted into a gaseous vapor,which by opening the needle-valve 18 is permitted to escape into the mixing-tube 4 along with a liberal admixture of atmospheric air, which on entering the chamber 1, where the commingling is completed, passes through the distributingpipes 2 to the burner-pipes 4, issuing from which it becomes readily ignited. As the combustion progresses and the parts of'the burner become hotter the heat of the flames will gradually gain in intensity, thus permitting a constantly-increasing volume of atmospheric air to be consumed. The burner-tube 5, having the branch 6 extended over the generatortubes and deflecting flame directly upon the latter, will keep the said generator-tubes constantly in the highly-heated state, which is essential to the successful operation of this class of devices.

I desire it to be understood that while I have in the foregoing described a simple and preferred form of my invention I do not necessarily limit myself to the structural details herein shown and described, but reserve the right to any changes, alterations, and modifications which may be resorted to without departing from the spirit or scope of my invention and without sacrificing the utility of the same.

Having thus described my invention, I claim 1. The combination with a fire-pot, of a hy drocarbon -burner consisting of a mixingchamber and a plurality of distributing-pipes and burner-pipes coacting to form a grate structure and refractory material supported upon said grate structure.

2. In a hydrocarbon-burner, a generatortube composed of a U -shaped pipe, a web connecting the branches of said pipe and a genorator-cup supported by a stem depending from said web.

3. In a hydrocarbon-burner, the combination of a'burner-body having a centrally-disposed mixing-chamber, a mixing-tube and a burner-tube depending from the latter, and a generator-tube connected at one end with the source of supply, an extension from said generator-tube provided With a vapor-discharge orifice and a needle-valve arranged to control the discharge of vapor through said orifice, said generator-tube consisting of a U shaped pipe, the arms of which are connected by aweb disposed below and exposed to the flames issuing from the burner-tube depending from the mixing-chamber.

4. In a hydrocarbon-burner, the combination of a mixing-chamber having radiating distributing-pipes, burner-pipes extending laterally from said distributing-pipes and cooperating therewith to form a grate structure,

a mixing-tube and a burner-tube depending from the mixing-chamber and a supply-pipe including a generator-tube exposed to the action of flames issuing from the burner-tube depending from the mixing-chamber, an extension from said generator-tube terminating in a vapor-discharge orifice, a needle-valve arranged to control the discharge of vapor through said orifice, and packing within the supply-pipe adjacent to the generator-tube.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

WILFRED B. SMITH.

Witnesses:

GRANT A. HEPLER, MAUDE TISHER. 

